Mesa Boogie Boogie 1 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

An early production variant of the original Mesa Boogie Mark I, sharing the same cascading-gain architecture that launched the boutique amp movement. These early Boogies were hand-wired and often slightly varied in spec, contributing to a collector mystique. Like all Mark I variants, its hallmark is a rich, piano-like clean tone that collapses into smooth, harmonically dense overdrive when pushed.

• Years produced: 1969–1982
• Made in: USA
• Wattage: 60W
• Channels: 1
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6L6GC

Known for: Carlos Santana, Lowell George.

Heard on: Oye Como Va — Carlos Santana (1970).

Tags: american, vintage, crunch.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.